We have video of a hit and run accident that could have been deadly. That video shows a car crashing into a motorcycle, then speeding off near Hickory Hollow Mall in Antioch. We first brought you Nick Carulla's story last week. Since then, he's found security camera video of the accident. Carulla is hoping someone who sees it recognizes the car that sped away. Look closely at the upper left hand corner of your screen. The first headlight is a motorcycle that is then hit from behind by a car. Nick Carulla was on that motorcycle last Wednesday. He survived with a fractured vertebrae. The bigger problem, though, is something else. Carulla was driving his brother's motorcycle, so insurance isn't covering the estimated $50,000 in medical bills. The driver responsible isn't paying because we don't know who he is. After stopping for a few moments, that driver sped away so fast Carulla didn't get the full license plate. The vehicle is believed to be a silver or grey 4-door sedan with a license plate number beginning with 544. The only image we have of it is this video Carulla located himself Monday at a service station. He believes police should be doing more to find the car that could have killed him. Metro Police declined to talk to us on camera, but a spokesperson says this accident is being taken seriously. That spokesperson says a detective is on it, but the hit and run department has a lot of cases to work and only 2 detectives. Police say they don't consider this a high priority case because Carulla's injuries were not life threatening.RAW NEWS EXCLUSIVE: Motorcycle Hit